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Method and User Equipment for Cell Selection of Heterogeneous Network

Active Publication Date: 2012-11-01
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0006]The objective of embodiments of the present invention is to provide a method and a user equipment for cell selection of a heterogeneous network, so as to reduce interference in the network when the UE sends uplink signals.

Problems solved by technology

Therefore, in a heterogeneous network scene, uplink signals sent by the UE cause serious interference in the network.

Method used

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  • Method and User Equipment for Cell Selection of Heterogeneous Network
  • Method and User Equipment for Cell Selection of Heterogeneous Network

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Embodiment Construction

[0025]To make the foregoing objectives, features, and advantages of the present invention more evident and comprehensible, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments in the following.

[0026]In the embodiments of the present invention, a type of a cell with highest signal strength is distinguished first; when the cell is a macro cell, a low-power cell in the macro cell is further searched for, and the low-power cell is tried to be selected as a serving cell so as to reduce interference in a network.

[0027]An embodiment provides a method for cell selection of a heterogeneous network, as shown in FIG. 1, where the method includes:

[0028]S10: A UE selects a cell with a highest signal measurement value in a carrier frequency.

[0029]S20: The UE synchronizes to the cell, and receives broadcast information of the cell.

[0030]If the cell is a macro cell, the broadcast information carries an extended indicator bit, and ...

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Abstract

Embodiments of the present invention provide a method and a user equipment for cell selection of a heterogeneous network. The UE selects, a cell with a highest signal measurement value in a carrier frequency synchronizes to the cell, and receives broadcast information of the cell. If the cell is a macro cell, the broadcast information carries an extended indicator bit and the extended indicator bit is used to identify whether a low-power cell exists in the coverage of the macro cell. If the extended indicator bit identifies that the low-power cell exists in the coverage of the macro cell, the low-power cell in the macro cell is searched for, and if a low-power cell in the macro cell satisfies an S rule, the UE selects the lower-power cell as a serving cell and camps.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of International Application No. PCT / CN2011 / 070209, filed on Jan. 12, 2011, which claims priority to Chinese Patent Application No. 201010000577.4, filed on Jan. 12, 2010, both of which are hereby incorporated by reference in their entireties.FIELD OF THE INVENTION[0002]The present invention relates to the field of communication technologies, and in particular, to a method and a user equipment for cell selection of a heterogeneous network.BACKGROUND OF THE INVENTION[0003]In an existing LTE (Long-Term Evolution, long Term evolution) system, when selecting an initial cell, a UE (User Equipment, user equipment) searches for a radio frequency channel in an E-UTRA (Evolved UMTS Terrestrial Radio Access, evolved UTMS terrestrial radio access) frequency band according to its own capabilities so as to find a proper cell. For each carrier frequency, the UE only searches for a cell with strongest signals and selec...

Claims

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Application Information

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IPC IPC(8): H04W36/36H04W88/02
CPCH04W48/16Y02B60/50H04W48/20Y02D30/70
Inventor XIAO, DENGKUNHE, YUANQU, TONGWEIXIONG, XIN
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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